Hamburg, IA Weather & Growing Conditions
Tonight
72°F
Partly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Partly cloudy. Low around 72, with temperatures rising to around 74 overnight. South wind 6 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Partly Cloudy then Chance Showers And Thunderstorms | 6 to 12 mph S | 50% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 7 mph WSW | 44% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 9 mph N | 69% |
| Sunday | 67°F | Slight Chance Showers And Thunderstorms | 10 mph NNE | 40% |
| Sunday Night | 58°F | Chance Showers And Thunderstorms | 8 mph NE | 41% |
| Monday | 61°F | Chance Rain Showers | 8 mph NE | 41% |
| Monday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph NE | 22% |
| Tuesday | 61°F | Mostly Cloudy | 7 mph NE | 2% |
| Tuesday Night | 48°F | Partly Cloudy | 5 mph E | 0% |
| Wednesday | 64°F | Mostly Sunny | 3 mph ESE | 3% |
| Wednesday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph ESE | 18% |
| Thursday | 66°F | Chance Rain Showers | 5 mph SE | 31% |
| Thursday Night | 58°F | Chance Rain Showers | 3 mph ESE | 29% |
| Friday | 67°F | Chance Rain Showers | 6 mph ESE | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hamburg, IA
Last spring frost
Apr 19
First fall frost
Oct 19
Growing season
182 days
Hardiness zone
5b
Explore more for Hamburg, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Sidney 1Sse, Ia (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.